Unless it is brought into line with the newer fiction, mainly with the issue of when the Elites joined the fight, its status is still iffy in my mind no matter what it is called.

: The Autumn-class and it's length are from the new Visual Guide and is seen
: also at the end of the Forward Unto Dawn series final shot.

Where does the Visual Guide get its numbers or its info on a class that is only in a couple of cutscenes and only as generic ships?

: This is all "official" info. But as I said, the only thing that
: makes it all play nice is that the Pillar of Autumn looks and is sized
: like the Halo 1 version and not either the Reach or Anniversary edition
: (both of which are minorly different from one another!)

I don't have any complaint with defining the Pillar of Autumn as something close to the Halo 1 version. If it best fits the other fiction that's great.